body {
  padding: 50px;
  font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
}

.bgimg{
  background-image: url('https://static.vecteezy.com/system/resources/previews/001/882/531/original/dark-blue-technology-background-free-vector.jpg');
}

.contenedor{
  margin-top: 20%;
}

a {
  color: #00B7FF;
}